Yarn tail disposal device for automatic bobbin winding machines



Jan. 3. 1956 J. w. MAY 2,729,398

YARN TAIL DISPOSAL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES 5Sheets-Sheet 1 Filed Sept. 12 1951 5 Jomv W. MAY,

INVENTOR.

""lllll lllllllmi l- A E '1- loo ATTORNEYS,

! J n. 3. 1956 J w MAY 2,729,398

YARN TAIL DISPOAL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES FiledSept. 12, 1951 3 Sheets-Sheet 2 JOHN W MAY,

INVENTOR.

Zd oni-M ATTORNEYS.

Jan. 3. 1956 J w MAY 2,729,398

YARN TAIL DISPO$AL DEVICE FOR AUTOMATIC BOBBIN WINDING MACHINES FiledSept. 12, 1951 3 Sheets-Sheet 5 JoHN W. MAY,

INVENTUR.

United States Patent YARN TAIL DISPOSAL DEVICE FOR AUTOMATIC BOBBINWINDING MACHINES I John W. May, Wynnewood, Pa., assignor, by mesneassignments, to Deering Millikan Research Corporation, Pendleton, S. C.,a corporation of Delaware Application September 12, 1951, Serial No.246,299

9 Claims. (Cl. 242--19) This invention relates to a yarn tail dispellingor disposal device for automatic bobbin winding machines such as theWhitin-Schweiter. automatic filling-bobbinwinder and is particularlyadapted to be used in associationwith an automatic tail cutter of thetype shown in my co-pending application, improved Tail Cutter forWinding Machines, Serial Number l79,672, filed August 16, 1950, nowPatent No. 2,677,507, of which the present application is a continuationin part.

The usual types of automatic winding machines such as theWhitin-Schweiter winder manufactured by the Whitin Machine Works,Whitinsville, Massachusetts, includes a horizontally movable chuck towhich bobbins are singly directed upon a preceding bobbin having beenfiiled with yarn. Yarn from a preceding bobbin is directed across theface of the chuck and is clamped between the chuck andthe head of thesucceeding bobbin to be filled. As the yarnis wound on the new bobbin, aportion of the yarn extends across the head of the bobbin and is severedby conventional or other means such as the improved tail cutterdisclosed in my said copending application. This severed portion of yarnis known as a yarn tail and in operation of a winding machine of thistype, the yarn tails or ends, after being severed from the quillsorbobbins, either adhere to the quills, become enmeshed in surroundingparts of the machine or are thrown free of the machine, thus presentinga disposal problem and requiring periodic stoppage of the machine topermit the accumulated tail ends to be removed from the machine orcleaned from around the machine. This cleaning problem increases theexpense of operating and maintaining the machine'and, accord ingly,increases the cost of the finished product.

An even more serious problem occurs where the severed tails adhere tothe wound quills. If these quills are loaded into the loom batterywithout removal of the tails, defective clothwill-be produced as aresult of the tails being woven into the cloth. Generally, relativelyfew of the tails can be pulled out of the Woven cloth and even wherethis can be done the imperfection persists. Hence, it has been necessaryfor an operator or battery hand to scrutinize the quills and remove anytails before loading the loom battery, a tedious task and one thatfurther increases the operating cost of the machine.

it is, therefore, the primary object of the present invention to providea device for automatically removing the severed yarn tail ends from themachine and wound quills and directing the same into a suitablereceptacle.

More specifically, it is an object of this invention to provide anozzle, adjacentthe chuck which normally imparts rotation to a bobbin orquill onto which yarnis wound, with means automatically operable as eachbobbin or quill is dotted to direct a blast of compressed air above andacross the chute into which ejected or dotted bobbins are directed uponeach transfer operation for directing the tail ends, which have beenautomatically severed from the heads of the bobbins, into a suitable r2,729,398 Patented Jan. 3, 1956,

receptacle disposed on the opposite side of said chute from that atwhich the nozzle is disposed.

It is, another object of this invention to provide yarn tail disposalmeans of the type described having means for causing a blast of air tobe emitted by the nozzle intermittently and inprecise timed relation tothe transfer operation in order to insure that the blast of air from thenozzle will not interfere with the normal path of travel of the yarnfrom the source to the chuck to be ciamlped between the head of theempty bobbin and the c uc Some of the objects of the invention havingbeen stated, other objects will appear as the description proceeds whentaken in connection with the accompanying drawings in Which I Figure 1is a fragmentary side elevation of an automatic winding machine showingthe tail disposal device in association therewith and showing the meansfor supporting the receptacle, but omitting the receptacle, for purposesof clarity;

Figure 2 is an enlarged vertical sectional view with parts broken awaytaken substantially along the line 22 in Figure 1;

Figure 3 is a fragmentary elevation of the nozzle look: ingsubstantially along the line 33 in Figure 2;

Figure 4 is a fragmentary vertical sectional view through the nozzletaken substantially along the line 44 in Figure 3;

Figure 5 is an enlarged top plan viewof the automatic winding machinewith the yarn tail disposal device in association therewith and beingtaken looking substantially along the line 5-5 in Figure 1 with partsbroken away for purposes of clarity;

Figure 6 is an enlarged isometric view of'the disposal unit removed fromthe machine and looking at the opposite side thereof from that shown inFigure 1, and omitting the nozzle for purposes of clarity.

Referring more specifically to the drawings, the numeral 10 broadlydesignates the frame of an automatic bobbin or quill winder such as theWhitin-Schweiter automatic filling bobbin winder, which includes acasing 11 which is substantially rectangular in plan and in whichconventional gearing and earns, not shown, are disposed for effectingoperation of the various conventional parts of the machine. The frame italso includes a horizontally disposed fixed'rod 12 extending outwardlyfrom the front of the casing 11 having a conventional stationary bobbinholder on the front or outer end thereof, which is not shown in thepresent drawings but is clearly shown in the patent to W. Schweiter,Number 2,262,310 of December 30, 1941. This rod 12 is often termed atraverse rod since it usually supports a conventional traverse carriage,not shown, which assists in directing yarn to bobbins or quills, onlytwo of which are shown in the drawings indicated at B1 and B-2 in Figure2, to permit the yarn to be wound thereon in a conventional manner.

The casing 11 supports a conventional bobbinv feed chute'15 to whichbobbins or quills are directed, one at a time, by conventional means,not shown. The chute 15 has an open bottom through which the bobbins orquills are directed to a conventional substantially V-shaped elongatedbobbin carrier 16 suitably connected as by an arm 16a extending fromthesame to a bobbin carrier shaft 17 oscillatably mounted in and extendingforwardly from the front wall of the casing 11. The bobbin carrier shaft17 has a crank arm 20 fixed thereon which extends downwardly andoutwardly to the right as in Figure 2 and has one end of a conventionallink 21 pivotally connectedto the free end thereof. The link 21 extendsout-. wardly and is then bent upwardly, .being pivotally connected toone end of a swing arm 22 fixed on a stud 23 projecting" forwardly fromand being oscillatably mounted in the front wall of the casing 11.

The stub shaft or stud 23 is oscillated by conventional means, notshown, disposed within the casing 11 and is so operated as to cause thecrank arm 20 to move in a counterclockwise direction in Figure 2 to theleft to move the bobbin B-2 carried thereby to that position in whichthe bobbin B-l is shown in Figure 2, adjacent a chuck 25, to permit thebobbin B-2 to be grasped by the chuck prior to having yarn woundthereon, the bobbin B1 having previously been ejected from the chuck 25,shown in engagement with the bobbin B-l in Figures 1, 2 and 5.

The chuck 25 operates in a well-known manner, in timed relation to theoperation of the machine, to recede from left to right in Figure 1 uponthe desired amount of yarn being wound about the bobbin B-l. As thischuck 25 partially recedes into the casing 11, the bobbin B-l falls bygravity, into a lower bobbin chute assembly broadly designated at 26.The lower bobbin chute 26 is a usual part of this type of windingmachine but in order to accommodate the tail disposal receptacle of thepresent invention, to be later described, the usual type of chute hasbeen modified as will be later described in detail.

The lower bobbin chute 26 is hollow in structure and as the filledbobbins fall into the chute 26, the head portions thereof extenddownwardly due to the small end of the expelled bobbin engaging a curvedexpelled bobbin guide 30 (Figures 1 and 6) which extends upwardly andoutwardly from the chute 26.

In order that the yarn extending from the'small end of the filled bobbinmay be repositioned by conventional means, such as that shown in myco-pending application, Serial Number 180,021, filed October 30, 1950,it is necessary that the bobbin or quill expelled from the chuck 25remain within the confines of the chute 26 until-the bobbin B-2 has beenproperly grasped by the chuck 25 which permits the yarn extending fromthe small end of the expelled bobbin to extend across the front face ofthe chuck 25 to be subsequently clamped between the head of the emptybobbin B-2 and the front face of the chuck 25 in the usual manner.Therefore, the automatic winding machine is provided with a bobbinrelease arm 31, normally extending in a substantially horizontalposition adjacent the outer wall of the chute 26, the free or front endof which has a bobbin retaining flange 32 projecting downwardlytherefrom, whereby the expelled bobbin is normally prevented from beingdischarged from the open lower end of the chute 26. This bobbin releasearm 31 extends rearwardly and curves upwardly and is fixed on a bobbinrelease arm rod 33 which is oscillatably mounted in a bearing block 34suitably secured to the front wall of the casing 11.

The bobbin release arm rod 33 is bent upwardly and has an inwardly bentportion 35 on the upper end thereof, the front face of which is urged,by the weight of the bobbin release arm 31, against the rear surface ofan arm portion 36 which projects downwardly and forwardly at an anglefrom a conventional magazine swing arm broadly designated at 40. Themagazine swing arm is of usual construction and is pivotally mounted, asat 41, on the side wall of the housing 11. The magazine swing arm alsocomprises an upwardly extending magazine rack stud 42 which isinstrumental in controlling conventional means, not shown, forpositioning the bobbins or quills, one at a time, in the upper chute 15.Since this latter means does not constitute a part of the presentinvention, a further description and illustration thereof is deemedunnecessary.

The magazine swing arm 40 also has an arm portion 43 integral therewithwhich extends in diverging relation to the arm 36 from the pivot point41, the free end of the arm 40 being oscillated by an intermittentlydriven element in the form of a crank arm The free end of the armportion 43 is provided with a cam race. 2

a cam follower 48 on the crank arm 45 moves in the race 47 to oscillatethe magazine swing arm 40 upon rotation of the crank arm 45. The crankarm 45 is fixed on a conventional intermittently driven shaft 46 whichis rotatably mounted in the casing 11 and is driven by conventionalmeans, not shown, disposed within the casing 11. The driving means forthe shaft 46 is controlled in timed relation with the means fordirecting yarn to the bobbin B-l disposed in the chuck 25, the shaft 46rotating in a clockwise direction in Figure 1 as the chuck 25 recedesand as the bobbin is expelled from the chuck 25 it falls into the chute26.

The bobbin release arm 31 is normally held in the open or raisedposition, shown in Figure 1, by the arm portion 36. Continued rotation,however, of the shaft 46 in a clockwise direction in Figure 1, causesthe arm 36 to move from right to left, thus releasing the release armrod 33 and permitting the bobbin release arm to move by gravity to aclosed position, thereby holding the expelled bobbin in the chute 26 fora period of predetermined duration. After the crank arm 45 has moved tothe point where the arm portion 36 commences its rearward movement, thearm portion 36 again engages the inwardly projecting portion 35 of thebobbin release arm rod 33, causing the bobbin release arm 31 to againmove upwardly to an open position. Upon the bobbin release arm 31 beingelevated, the bobbin in the chute 26 falls into a suitable container,not shown, disposed beneath the machine. The crank then comes to rest insubstantially the position shown in Figure 1 preparatory to a subsequentoperation as heretofore described.

Now, after an empty bobbin has been positioned in the chuck 25 in themanner heretofore described and the winding operation has started, atail of yarn T extends from between the head of the bobbin and the chuck25 across the usual rings R which surrounds the head of the bobbin. Thistail of yarn is severed just prior to release of the filled bobbin fromthe chuck 25 by suitable means, such as that shown in said Patent No.2,677,507, and a portion of which is shown in the accompanying drawings.

This tail cutter is broadly designated at 50 and comprises a bladesupporting member 51 having a blade 52 suitably secured to the inner endthereof, which is provided with aplurality of notches in the lower edgethereof defining projections 53 (Figure 1) normally spaced adjacent thehead of the bobbin B-1. The blade supporting member 51 is oscillatablymounted as at 54 on a bracket 55 secured, as by a screw 56, to the outersurface of the front wall of the casing 11. Conventional means, notshown in the present drawings, but being clearly shown in said PatentNo. 2,677,507, causes this blade support member 51 to move in aclockwise direction in Figure 2 to move the projections 53 on the loweredge of the blade 52 downwardly between adjacent rings R on the head ofthe bobbin upon a predetermined number of turns being wound aboutthebobbin or quill B-l.

Thus, the tail of yarn extending across the rings R will be engaged bythe projections 53 on the blade 52 to be ensnared and consequentlybroken or severed thereby. Since the structure and manner of operationof the tail cutter 50 are clearly described in said Patent No. 2,67,507,a further description thereof is deemed unnecessary.

The parts heretofore described, with the exception of the chute 26,which will be presently described in detail, are conventional parts ofan automatic winding machine and do not necessarily constitute parts ofthe present invention, these parts having been described merely asillustrative of a machine with which the present invention is adapted tobe associated.

chute and receptacle structure The chute 26 is generally of castconstruction, the casting being substantially U-shaped inplan andincluding a downwardly and forwardly curved front wall 60 which is anextension of the expelled bobbin guide 30 heretofore described. Thisbobbin guide is provided with a flanged portion 30a (Figure 6) which hasa boss portion 62 integral therewith and projecting inwardly therefromin which the shaft 17 is oscillatably mounted.

The chute 26 also includes a downwardly and forwardly curved rear wall63, the inner edge of which is integral with an inner Wall 64, thisinner wall 64 also being integral with the front wall 60. The inner wall64 also has a boss portion 64a integral therewith and projectinginwardly therefrom in which the shaft 17 is also oscillatably mounted.Thus, the shaft 17 assists in supporting the chute 26.

It will be observed in Figure 6 that the downwardly and forwardly curvedrear wall 63 has a boss' position 65 projecting rearwardly therefromwhich is slidably penetrated by a screw 66 for securing the chute 26 tothe front wall of the casing 11 of the frame 10. The parts of the lowerchute 26, heretofore described, are conventional parts of an automaticwinding machine and it is with these parts that the receptacle holderand the receptacle, con stituting parts of the present invention, areparticularly adapted to be associated.

Heretofore, the outer edges of the front and rear walls 60 and 63,respectively, have had an outer wall or chute cover in the form of aplate secured thereto, the upper edge of which terminated insubstantially the same horizontal plane as the upper edge of the innerwall 64. In order, however, to provide means for disposingof the yarntail T, which loosely extends acrossthe bobbin rings R as each bobbinisexpelled into the chute 26, in the manner heretofore described, I havesupplemented the usual cover or outside wall of the chute 26 with animproved cover or outside wall 67, the lower portion of which is shapedto conform to the curvature of the exterior surfaces of the respectivefront and rear walls 60 and 63 of the chute 26. This cover 67 issuitably secured to the outer edges of the front and rear Walls 60 and63, as by screws 70, which are threadably embedded in conventional bossportions 71 projecting exteriorlyfrom the front and rear walls 60 and 63"and being integral therewith.

It will be observed in Figures 1 and 6 that the upper edge of the cover67 is cutaway to providean opening therein in which a duct or tubularreceptacle holding member broadly designated at 72 is disposed.Thisopening defines a lip portion 67a on the'cover 67 disposed adjacentthe rear wall 63, the upper edge of which preferably terminates in asubstantially lower horizontal plane than the upper edge of the rearwall 64 of the lower chute 26. The receptacle holder or duct 72comprises a bottom wall 73, a top wall 74 and front and rear walls 75and 76, respectively, which walls are preferably made from sheet metal,capable of. being bent in the desired shape or of being welded togetheras desired. It will be noted that opposed ends of the duct 72, that is,the inner and outer ends thereof with respect to the chuck 25,

, are open.

It will be observed in Figures 1 and 6 that the walls 73 to 76,inclu-sively, are flared outwardly, as'at 77, at their outer edges toprovide a ridge surrounding the outer edge of the duct or receptacleholder 72 for anchoring a suitable hopper, container or receptacle 80thereon. Since compressed air is employed in directing the tail ends,heretofore referred to, into the receptacle 80, the receptacle 8!)should be made from a perforated or foraminated material so that thecompressed air may pass therethrough. In the present instance,thereceptacle 80 is shown in the form of an open-mesh cloth bag,preferablymade from textile material and having an open end whichisprovided with a suitable draw string 81. Thus the open end of the bagmay be positioned on the outer end of the duct or receptacle holder 72in overlapping relation to the outturned or flared portions 77 ofthe'walls 73 to 75,'inelusive, after which the draw string 81 maybe'pulled 6 a v tight and tied for securing the receptacle 80 to theduct or receptacle holder 72.

It will be noted that the upper and lower walls 73 and 74 and the rearwall 76 are preferably disposed in substantially right-angular relationto each other while the front wall 75 extends upwardly and outwardlyfrom the bottom wall 73 of the duct or receptacle holder 72 at an angleconforming substantially to the slope of the adjacent expelled bobbinguide and the front wall 60 of the chute 26 to give a greater breadth tothe duct or receptacle holder 72.

It will be observed in Figure 6 that the rear wall 76 of the receptacleholder 72, which is spaced substantially forward of the casing 11, hasan opening 82 substantially triangular in shape extending from the inneredge thereof toward the outer edge, relative to the chuck 25, to theedge of which a substantially concavo-convex wall member or shield 82ais suitably secured. If desired, the shield 82a may be formed as anintegral part of the wall 76 of the duct 72. This concave-convex shield82a curves rearwardly and is then bent inwardly to form a bottom shield82b, the front edge of which is suitably secured to the correspondingupper edge of the rear wall 76 defining the hotholder tom of the opening82. This bottom shield 82b is also suitably secured to the upper edge ofthe portion 67a of the cover 67 or may be formed integral with theportion 67a.

It will be noted that the rearmost portion of the concave-convex shield82a is disposed closely adjacent the front surface of the front wall ofthe casing 11 serving to increase the area of the duct 72 (Figures 2 and6) and insure that the tail ends T will not be deposited on the arm 22when they are directed towards the duct or receptacle 72 by a suitablepneumatic means in the form of a nozzle to be presently described.

It will also be observed that the upper wall 74 of the receptacle holderor duct 72 extends inwardly substantially beyond the vertical plane ofthe inner edge of the lower wall 73, thus to extend above the chute 26and to insure further that the tail ends directed into the duct by thenozzle, to be later described, will not be blown over the upper wall 74of the receptacle holder 72. his evident that the front and rear walls75 and 76 also extend upwardly and inwardly of their front edges fromthe lower or bottom wall 73 to the upper wall 74 of the receptacleholder or duct 72 to further assist in directing the tail ends into thereceptacle 8%).

It will be observed in Figure 2 that the open upper end of the chute 26is disposed a substantial distance below thelchuclt 25 with the resultthat the filled bobbin or quill, upon being discharged or expelled fromthe chuck 25, falls into the chute'26 and, as heretofore stated, thesmall end of the bobbin or quill engages the expelled bobbin guide 30and thus causes the head end of the bobbin or quill to fall into thechute 26 in advance of the small end thereof. In order to prevent thefall of the head end of the quill or bobbin from being interrupted bythe lower wall 73 of the receptacle holder or duct 72, there is provideda pair of substantially inverted L-shaped deflector rods 85 suitablysecured, as by welding, to the inner face of the outer wall 67 at itsjuncture with the lower wall 73 of the receptacle holder or duct 72,which extend upwardly and are then bent outwardly at a pointsubstantially midway between the upper and lower walls 74 and 73 of thereceptacle holder or duct 72. The outer ends of the deflector members 85terminate substantially short of the outer edges of l the walls 73 to76, inclusive, of the receptacle holder or duct 72. Thus, the head ofthe expelled bobbin or quill will be prevented from falling upon thelower wall 73 of the receptacle holder or duct 72 due to the deflectorrods 85 which function to direct the bobbin or quill downwardly into thechute 26. 1

Nozzle and actuating means therefor Referring to Figures 2, 3 and 4,there will be observed of .an elongated horizontally disposed tubularmember 91 closed at its front and rear ends by suitable closure members92 and 93, respectively. The nozzle 90 is positioned immediately abovethe upper edge of the inner wall 64 of the chute 26 and in a horizontalplane substantially midway of the upper and lower walls 74 and 73 of thereceptacle holder or duct 72. The nozzle 90 is supported in thisposition by a suitable bracket or plate 95, to the upper surface ofwhich the tubular member 91 is suitably secured, as by Welding. Thisbracket or plate 95 is suitably secured, as by screws 96, to theconventional inner wall 64 of the chute 26 adjacent the upper edgethereof.

The tubular member 91 has a nozzle opening, preferably in the form of alongitudinally extending slot 94, in the side thereof facing the duct orreceptacle holder 72, and is provided with an angularly disposeddownwardly projecting conduit 97 intermediate the ends thereof which isconnected to a pipe 100 by means of a nipple 101. Flexible tubing ispreferably used for the pipe 100 but it is to be understood that anysuitable conduit may be used. The pipe 100 extends outwardly or to theleft in Figure 2 beneath the various operating parts of the machine,rearwardly past the left-hand wall of the casing 11, then makes a rightangle and extends past the rear wall of the casing 11, being finallyconnected to a suitable valve housing 104 by means of a pipe elbow 105extending from the lower end of the valve housing 104 in Figure l. Thepipe 100 may be supported on the casing 11 of the frame 10 by suitablesupport members or clips 106 and 107, as is clearly shown in Figures 1,2 and 5.

The valve housing 104 is suitably secured, as by screws 110, to an angleclip or bracket 111 which is suitably sccured to the rear wall of thecasing 11. The valve, illustrated by the housing 104, may be of anydesired structure and a detailed description of the inner structure ofthe valve housing 104 is deemed unnecessary. This valve may be of a typesuch as a Schrader Number 9264B.

The valve assembly or housing 104 has suitable passageways therein, notshown, which are normally closed by means connected to a spring loadedvalve plunger 113 projecting forwardly from the valve housing 104, whichplunger, upon being depressed, permits compressed air to flow from asuitable source of compressed air, not shown, through a pipe or conduit11.4, through the valve housing 104, through the pipe elbow 105 pipe 100and the nipple 101 (Figures 2 and 4) to the nozzle 91, to be thusemitted through the slot 94 in the tubular member 91.

The valve housing 104 has a forwardly projecting bifurcated portion 116thereon in which the upper end of a valve control lever 117 is pivotallymounted, as at 118. This lever 117 has a roller or follower wheel 121rotatably mounted in the lower end thereof which is so positioned as tobe intermittently engaged by the outer end of the crank arm 45,heretofore described, as is clearly shown in Figure 1.

It will thus be observed that, as the chuck 25 recedes into the casing11 in the manner heretofore described, permitting the bobbin B-l to movedownwardly by gravity, the crank arm 45 moves in a clockwise directionin Figure 1 into engagement with the roller or follower wheel 121, thusmoving the lever 117 in a counterclockwise direction into engagementwith the plunger 113 to open the valve 104. This permits compressed airflowing from the pipe 114 to be emitted from the slot 9 in the tubularmember 91 of the nozzle 90. Thus, at substantially the same time thatthe head of the bobbin B1 moves past the nozzle 90 into the chute 26, ablast of air is emitted through the opening or slot 94 in the nozzle 90past the bobbin thereby blowing the tail end T previously severed at thehead of this bobbin through the receptacle holder or duct 72 into thereceptacle 30.

It will be noted that the nozzle 90 is positioned in a slightly higher"plane than that of the upper ends of the deflector rods 85 and will,therefore, normally cause :the'tailends topass above. theupper ends of.the deflector rods as they are thrown into the receptacle 80. Although arelatively few of the tail ends T may be ensnared by the upstandingdeflector rods 85, it is evident that these particular tail ends may beremoved from the deflector rods 85 when the bag or receptacle is removedfrom the receptacle holder or duct 72 for emptying the same.

It is evident that, upon the crank arm 45 moving out of engagement withthe roller 121 in Figure 1, the valve 104 will again be closed toprevent compressed air from being emitted from the opening or slot 94 inthe nozzle thus permitting normal operation of the machine. A continuousblast of air from the nozzle is undesirable since it might foul the yarnas it is positioned to extend past the outer end of the bobbin holder orchuck 25 preparatory to an empty bobbin being positioned in the chuck 25as heretofore stated.

It is thus seen that I have provided a tail disposal device forautomatic winding machines which operates in timed relation to theoperation of the machine to direct a blast of air across the path oftravel of a bobbin as it is being expelled from the chuck 25 and havefurther provided a receptacle and means for supporting the receptacle insuch a position that the tail ends from the expelled bobbins will beblown into the receptacle by a blast of air across the path of travel ofthe ejected bobbins.

In the drawings and specification there has been set forth a preferredembodiment of the invention and although specific terms are employed,they are used in a generic and descriptive sense only and not forpurposes of limtation, the scope of the invention being defined in theclaims.

I claim:

1. In an automatic winding machine for winding yarn onto bobbins havingwinding means, means for expelling bobbins upon completion of thewinding process and means for severing yarn tails from said bobbins, thecombination with a pneumatic nozzle for directing a blast of compressedair across the path of travel of said expelled bobbins and a hopperpositioned on said machine on the other side of the path of travel ofthe expelled bobbins and in alignment with said pneumatic nozzle, ofmeans for introducing air under pressure to said nozzle and meansoperatively connecting said last-named means to said machine to cause ablast of air to be emitted from said pneumatic nozzle upon a bobbinbeing expelled to direct said yarn tails into said hopper.

2. In an automatic winding machine for winding yarn onto bobbins havingwinding means, means for expelling bobbins upon completion of thewinding process, and means for severing yarn tails from said bobbins andbeing provided with a bobbin release arm for momentarily retainingexpelled bobbins, said machine having means for operating said bobbinrelease arm to move the same into and out of operative position, yarntail disposal means comprising a nozzle positioned adjacent the path oftravel of each expelled bobbin, means for directing air under pressureto said nozzle, means operatively connecting said last-named means withthe means for operating said bobbin release arm, and a hopper mounted onsaid machine in alignment with said nozzle, whereby actuation of saidmeans for operating said bobbin release arm will cause air to be emittedfrom said nozzle across the path of travel of ,said expelled bobbin todirect said yarn tails into said hopper.

3. In an automatic winding machine for winding yarn onto bobbins havingmeans for receiving the bobbins for winding yarn thereon, a tail cutterfor cutting tails of yarn from the bobbins after the yarn has been woundthereon, and means for expelling vfilled bobbins, yarn tail disposalmeans comprising a nozzle positioned adjacent the'path of travel of saidexpelled bobbins, means automatically operable by said machine foremitting air under pressure from said nozzle, and means for entrappingyarn. tailsrdirected thereto by said air from said greases nozzle,including a receptacle holding member positioned on said machine, and areceptacle removably connected to said receptacle holding member forreceiving yarn tails.

4. In an automatic winding machine for winding yarn onto bobbins havingwindings means and means for expelling wound bobbins therefrom and beingprovided with a bobbin release arm for momentarily retaining expelledbobbins in spaced relation to said winding means and also with means forsevering yarn tails from said bobbins, said machine having anintermittently driven element thereon for operating said bobbin releasearm, yarn tail disposal means comprising a nozzle positioned adjacentsaid winding means, means for introducing compressed air to said nozzle,means operatively connecting said lastnamed means to said intermittentlydriven element, a receptacle holding member mounted on said machine, anda receptacle removably connected to said receptacle holding member,whereby operation of said intermittently driven element will cause ablast of air to be emitted from said nozzle in timed relation to theoperation of said bobbin release arm to direct yarn tails from saidbobbins into said receptacle carried by the receptacle holding member.

5. In an automatic winding machine for winding yarn onto bobbins havingwinding means, means for expelling wound bobbins, an expelled bobbinchute and also an intermittently movable element movable upon eachsuccessive bobbin being expelled, said machine being provided with meansfor severing yarn tails from said bobbin, a 'yarn tail disposal devicecomprising a nozzle positioned adjacent said winding means, means forintroducing compressed air to said nozzle, valve means in saidlast-named means, means operatively connecting said intermittentlymovable element to said valve means to cause air to be emitted from saidnozzle in timed relation to the operation of said machine, a receptacleholder positioned in alignment with said nozzle, said receptacle holderhaving a yarn tail receiving receptacle connected thereto whereby theair emitted from said nozzle will cause said yarn tails to be directedinto said yarn tail receptacle and said yarn tail receptacle comprisinga duct secured to said machine, means in said duct for connecting thereceptacle thereto, and said duct having guide means associatedtherewith for directing expelled bobbins into said expelled bobbinchute.

6. In an automatic winding machine having a chuck for successivelyreceiving bobbins, means for winding 'yarn onto the bobbins wherein atail of yarn is formed at the base of each bobbin, means forsuccessively releasing the filled bobbins and a chute including a firstside wall and a second side wall spaced below the chuck and betweenwhich the filled bobbins fall upon being released, said machine alsohaving a tail cutter for cutting the corresponding tail of yarn as eachbobbin is filled, the upper edge of the first side wall being disposedin a horizontal plane substantially above that of the upper edge of thesecond side wall and having an opening therein, an elongatedhorizontally disposed nozzle positioned immediately above the upper edgeof the second side wall and directed towards the opening in said firstwall, a duct projecting from the side of said first side Wall remotefrom the second side wall and communicating with said opening, the upperedge of the second side wall being disposed substantially midway of thehorizontal plane of said duct projecting from the first side wall, aform inated receptacle, means securing the foraminated receptacle to theend of said duct remote from said first side wall and in communicationwith said duct, means connecting the nozzle with a source of compressedair and means operable in timed relation to a bobbin being released fromsaid chuck for admitting compressed air to 10 said nozzle to cause thecorresponding tail of yarn from the released bobbin to be carried acrossthe open upper end of the chute, through the opening, the duct, and intothe foraminated receptacle, successively, thereby to dispose of saidtail of yarn.

7. In a structure according to claim '6, at least one deflector rodsecured to the first wall and extending at least partially across saidopening to prevent the bobbins released from the chuck from being throwninto said opening in their course of movement into said chute.

8. In an automatic winding machine having a chuck for successivelyreceiving bobbins, means for winding yarn onto the bobbins wherein atail of yarn is formed at the base of each bobbin, means forsuccessively releasing the filled bobbins and a chute, including a firstside wall and a second side wall, spaced below the chuck and betweenwhich walls the filled bobbins fall upon being released, said machinealso having a tail cutter for cutting the corresponding tail of yarn aseach bobbin is filled, the upper edge of the first wall being higherthan the upper edge of the second side wall and having an openingtherein, the upper edge of the said second wall being disposedsubstantially midway of said opening in the first side wall, anelongated horizontally disposed nozzle positioned immediately above theupper edge of the second side wall and directed towards the opening insaid first side wall, a duct projecting from the side of said first sidewall remote from the second side wall and communicating with saidopening, a foraminated receptacle, means securing the foraminatedreceptacle to the end of said duct remote from said first side wall andin communication with said duct, a conduit connected at one end thereofto said nozzle and at its other end to a source of compressed air, anormally closed valve interposed in said conduit, means operable intimed relation to a bobbin being released from the chuck for openingsaid valve to permit compressed air to escape through the nozzle wherebythe corresponding tail of yarn from the released bobbin is carriedacross the open upper end of the chute, through the opening and the ductand into the foraminated receptacle, successively, thus disposing ofsaid tail of yarn.

9. An improvement in an automatic winding machine for winding yarn ontobobbins having means for receiving the bobbins for winding the yarnthereon, a tail cutter for cutting tails of yarn from the bobbins afterthe yarn has been wound thereon, and means for expelling filled bobbinsso they fall from said receiving means; the improvement consisting ofyarn tail disposal means comprising compressed air means removed fromthe yarn winding means and disposed adjacent one side of the path oftravel of the expelled bobbins for momentarily emitting a blast of airacross the path of travel of the bobbins, means for automaticallyoperating said compressed air means in timed relation to the expellationof each bobbin, and hopper means mounted on said machine and positionedon the other side of the path of travel of the bobbins and in the pathof the blasts of air to trap yarn tails directed thereinto by saidautomatically operable compressed air means.

References Cited in the file of this patent UNITED STATES PATENTS2,035,721 Reiners et al. Mar. 31, 1936 2,245,360 Peterson June 10, 19412,449,328 'Schweiter Sept. 14, 1948 2,481,197 Caille Sept. 6, 1949FOREIGN PATENTS 563,594 Germany Nov. 7,1932

